Lock 20
Probably the most well known of the "Six Locks", Lock 20 stands beside the famous Great Falls Tavern. Great Falls Tavern had a dual function as serving as lockhouse 12 as well as being an inn for visitors of the falls.
Mile Marker: 14.4
Nearby Amenities:
- Historic Great Falls Tavern
Approximately 0 miles away. 
Great Falls Restrooms
Approximately 0.1 miles away.- Great Falls Snack Bar
Approximately 0.1 miles away. 
Great Falls Picnic Tables
Approximately 0.2 miles away.
Great Falls Parking
Approximately 0.2 miles away.
